P2020: Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 2)

P2020 flags a bank 2 position signal that is electrically sound but does not fit what the flaps should be doing. On the CGFA hybrid V6 of the 2014 Touareg, Volkswagen triggers it when commanded and measured flap position are more than 40 % apart or the reported value leaves the 0–100 % window. Ford's summaries describe it as the bank 2 sensor travelling too far: the plates either miss the commanded position or the sensor reports travel beyond the normal stops, and four such events are needed. Because a sticking shaft, a broken lever or a vacuum fault looks the same to the sensor, P2020 often appears next to the stuck codes P2005 or P2007.

Bank 2 is the side without cylinder 1, so it only exists on V or boxer engines.

Symptoms

• Check engine lamp on
• Reduced pull in the mid range or uneven idle

Most likely causes

• Bank 2 flap shaft sticking or carbon-fouled
• Broken lever or linkage between actuator and shaft
• Weak vacuum or leaking actuator diaphragm (vacuum systems)
• Sensor shifted or adaptation missing after repair

What to check, in order

Start with the simplest. You can tick off each step.

1. Check the vacuum hoses and the connector
2. Compare the reading with other engine data while varying the engine speed.
3. Watch the actuator's movement with the scanner
4. Inspect the manifold for carbon buildup
5. Replace the actuator if it does not follow the command

Good to know

• Repair difficulty: hard
• It affects emissions.

What each character of P2020 means

• P: Powertrain: engine and transmission
• 2: Generic code: same on every make
• 0: Subsystem depends on the code range
• 20: Specific fault in that system

Frequently asked questions

Can I keep driving with code P2020?

You can drive in moderation. Get it repaired soon, because a loose flap can cause major damage on some engines.

What causes code P2020?

The most common causes are: bank 2 flap shaft sticking or carbon-fouled; broken lever or linkage between actuator and shaft; weak vacuum or leaking actuator diaphragm (vacuum systems).

Related codes

• P2015Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1)
• P2019Intake Manifold Runner Position Sensor/Switch Circuit (Bank 2)
• P2005Intake Manifold Runner Control Stuck Open (Bank 2)
• P2007Intake Manifold Runner Control Stuck Closed (Bank 2)
• P2011Intake Manifold Runner Control Circuit/Open (Bank 2)

Sources

• static.nhtsa.gov: MC 10074008 2280
• fordservicecontent.com: OBD Operations Summary Gasoline 2020 2023
• performanceparts.ford.com: 2014 BOSS 302S OBDII Codes

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.